You filed a bug against the Ubuntu documentation, and your problem is not about that, so closing.
I recommend that you ask for support at a suitable resource, for instance <https://askubuntu.com>. If you do, you may want to open a terminal window, run the command unity-control-center and include whatever it outputs to the question you ask. ** Changed in: ubuntu-docs (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1688330 Title: 17.04 update causes failure to open "System Settings..." To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubuntu-docs/+bug/1688330/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs